Package org.opengis.geometry.coordinate Description

A geometric object shall be a combination of a coordinate geometry and a coordinate
reference system. In all of the operations, all geometric calculations shall be done in the coordinate
reference system of the first geometric object accessed, which is normally the object whose operation
is being invoked. Returned objects shall be in the coordinate reference system in which the calculations
are done unless explicitly stated otherwise. The interface defined in this package are basically those
of set theory. In general a geometric object is a set of geometric points, represented by
DirectPosition. Object instantiations of geometric objects are
Geometry. Object instantiations of geometric points, when used as values,
are DirectPositions. General set theory operations defined at
Geometry differentiate further down the class hierarchy depending on
whether or not the boundary DirectPosition are included as set
elements. Subtypes of Primitive do not contain boundary points,
while subtypes of Complex do.